[Austinisalive2day]

I have 2000 Dakota with 4.7 and 4 o2 sensors took it in to get clutch done now all 4 ot sensors are on saying heater circuit I've taken it back to them twice to fix it and they haven't any ideas the steal brazed grounds are hooked up they are all plugged in .....I didn't have any trouble till they pulled the exhaust to change the clutch

 

[radioactive]

The heaters get their grounds thru the exhaust. Take a meter and measure for continuity between the O2 bungs and battery/engine ground.